gtk/subclass/
entry.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::object::Cast;
4use glib::object::IsA;
5use glib::subclass::prelude::*;
6use glib::translate::*;
7
8use super::widget::WidgetImpl;
9use crate::Widget;
10use crate::{Entry, ffi};
11
12pub trait EntryImpl: WidgetImpl + ObjectSubclass<Type: IsA<Entry>> {
13    /// Class handler for the [`populate-popup`][struct@crate::Entry#populate-popup] signal. If
14    ///  non-[`None`], this will be called to add additional entries to the context
15    ///  menu when it is displayed.
16    fn populate_popup(&self, popup: &Widget) {
17        self.parent_populate_popup(popup)
18    }
19
20    /// Class handler for the [`activate`][struct@crate::Entry#activate] signal. The default
21    ///  implementation calls [`GtkWindowExt::activate_default()`][crate::prelude::GtkWindowExt::activate_default()] on the entry’s top-level
22    ///  window.
23    fn activate(&self) {
24        self.parent_activate()
25    }
26}
27
28pub trait EntryImplExt: EntryImpl {
29    fn parent_populate_popup(&self, popup: &Widget) {
30        unsafe {
31            let data = Self::type_data();
32            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkEntryClass;
33            if let Some(f) = (*parent_class).populate_popup {
34                f(
35                    self.obj().unsafe_cast_ref::<Entry>().to_glib_none().0,
36                    popup.to_glib_none().0,
37                )
38            }
39        }
40    }
41    fn parent_activate(&self) {
42        unsafe {
43            let data = Self::type_data();
44            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkEntryClass;
45            if let Some(f) = (*parent_class).activate {
46                f(self.obj().unsafe_cast_ref::<Entry>().to_glib_none().0)
47            }
48        }
49    }
50}
51
52impl<T: EntryImpl> EntryImplExt for T {}
53
54unsafe impl<T: EntryImpl> IsSubclassable<T> for Entry {
55    fn class_init(class: &mut glib::Class<Self>) {
56        Self::parent_class_init::<T>(class);
57
58        if !crate::rt::is_initialized() {
59            panic!("GTK has to be initialized first");
60        }
61
62        let klass = class.as_mut();
63        klass.populate_popup = Some(entry_populate_popup::<T>);
64        klass.activate = Some(entry_activate::<T>);
65    }
66}
67
68unsafe extern "C" fn entry_populate_popup<T: EntryImpl>(
69    ptr: *mut ffi::GtkEntry,
70    popupptr: *mut ffi::GtkWidget,
71) {
72    unsafe {
73        let instance = &*(ptr as *mut T::Instance);
74        let imp = instance.imp();
75        let popup: Borrowed<Widget> = from_glib_borrow(popupptr);
76
77        imp.populate_popup(&popup)
78    }
79}
80
81unsafe extern "C" fn entry_activate<T: EntryImpl>(ptr: *mut ffi::GtkEntry) {
82    unsafe {
83        let instance = &*(ptr as *mut T::Instance);
84        let imp = instance.imp();
85
86        imp.activate()
87    }
88}
gtk/subclass/entry.rs

gtk/subclass/
entry.rs
